Convert OpenDocument Sheet to Excel (XLSX)
Free online converter for OpenDocument Sheet files. Office Open XML workbook. Nothing to install, no watermark, and every file is deleted automatically.
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Upload a OpenDocument Sheet file to convert it to Excel (XLSX). Up to 3 files at once, 100 MB each.
Free · up to 3 files · 100 MB each · files deleted automatically after 1 hour.
About ODS and XLSX
OpenDocument Sheet .ods
The OpenDocument spreadsheet — the open-standard counterpart to XLSX, and the native format of LibreOffice Calc.
Good for
- Open standard with no vendor lock-in
- Formulas, multiple sheets and charts
Trade-offs
- Excel round-trips it imperfectly, especially complex formulas
- Less common commercially
application/vnd.oasis.opendocument.spreadsheet
Excel (XLSX) .xlsx
Excel's modern workbook format — zipped XML holding sheets, formulas, formatting and charts.
Good for
- Keeps live formulas, not just their results
- Multiple sheets, charts and conditional formatting
- The default in nearly every business
Trade-offs
- Formula compatibility varies between spreadsheet applications
- Heavier than CSV for plain tabular data
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ODS and XLSX side by side
| ODS | XLSX | |
|---|---|---|
| Compression | Zipped XML | Zipped XML |
| Animation | No | No |
| Typically used for | LibreOffice Calc, open-standard exchange | Spreadsheets, financial models, reports |
What changes when you convert ODS to XLSX
Rendered by LibreOffice
The conversion runs through headless LibreOffice — the same engine behind the desktop suite, not a lookalike parser. It handles ordinary documents faithfully. Where it can drift is on the elaborate: a document leaning on fonts the server does not have will have them substituted, and the substitute rarely occupies exactly the same width, so line and page breaks can move. Heavily designed layouts are worth checking against the original.
Two suites, two ideas of the same document
ODS and XLSX are the native formats of different office suites, and they do not model documents identically. The text, structure and ordinary formatting come across cleanly. The margins are where care is needed: macros do not transfer, tracked changes and comments can be flattened, and features with no counterpart on the other side are approximated. Read the result before sending it on.
There is a ceiling on rows
A spreadsheet is not a database: the format tops out at 1,048,576 rows and 16,384 columns, and a file approaching either becomes painful to open long before it reaches them. CSV and JSON have no such limit. If your data runs to millions of rows, converting it into a workbook is usually the wrong move — keep it as text and query it with something built for the volume.
Formulas arrive as their results
What is read is the value each cell had last time the workbook was calculated, not the formula that produced it. That is almost always what you want from an export. It does mean the output is a snapshot: nothing in it recalculates, and a workbook saved without being recalculated will export whatever stale values it was holding.